C++ Exercises: Check if a given string is a Palindrome or not

C++ String: Exercise-10 with Solution

Write a C++ program to check if a given string is a Palindrome or not.

A palindrome is a word, number, phrase, or other sequence of characters which reads the same backward as forward, such as madam, racecar.

Pictorial Presentation:

Sample Solution:

C++ Code :

#include <iostream>

using namespace std;

string test_Palindrome(string text) {
  string str1, str2;
  int str_len = int(text.size());
  for (int i = 0; i < str_len; i++){
    if((text[i] >= 'a' && text[i] <= 'z' ) || (text[i] >= 'A' && text[i] <= 'Z' ))
      str1+=tolower(text[i]);
    if((text[str_len-1-i] >= 'a' && text[str_len-1-i] <= 'z' ) || (text[str_len-1-i] >= 'A' && text[str_len-1-i] <= 'Z' ))
      str2+=tolower(text[str_len-1-i]);
  }

  if (str1 == str2)
    return "True";
  return "False";

}

int main() {
  cout << "Is madam a Palindrome? " << test_Palindrome("madam");
  cout << "\nIs racecar a Palindrome? " << test_Palindrome("racecar");
  cout << "\nIs abc a Palindrome? " << test_Palindrome("abc");
  return 0;

}

Sample Output:

Is madam a Palindrome? True
Is racecar a Palindrome? True
Is abc a Palindrome? False

Flowchart:

C++ Code Editor:

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